videoio(dshow): add NULL ptr check

4 years ago · d7cb2ea210
parent 5340dc6686
commit d7cb2ea210
1 changed files with 1 additions and 0 deletions
--- a/modules/videoio/src/cap_dshow.cpp
+++ b/modules/videoio/src/cap_dshow.cpp
@ -2731,6 +2731,7 @@ int videoInput::start(int deviceID, videoDevice *VD){
    }

    VIDEOINFOHEADER *pVih =  reinterpret_cast<VIDEOINFOHEADER*>(VD->pAmMediaType->pbFormat);
+    CV_Assert(pVih);
    int currentWidth    =  HEADER(pVih)->biWidth;
    int currentHeight    =  HEADER(pVih)->biHeight;